Abstract C41: A phase 1 study of OMN54 in patients with advanced malignancies
Bibliographic record
Abstract
Abstract Purpose: With the increasing interest in natural products as therapeutics, we performed a Phase I open label study of OMN54 in patients with advanced malignancies to determine toxicity, maximum tolerated dose (MTD), dose limiting toxicities (DLT), and pharmacokinetics (PK). OMN54 is a multitargeted agent prepared from three Chinese botanical sources: Ganoderma lucidum, Salvia miltiorrhiza, and Scutellaria barbata, each with long histories of use as single agents. Methods: Eligible patients (pts) were ≥ 18 years with advanced solid tumor malignancies, able to swallow oral capsules, ECOG performance status ≤ 2, measurable disease as defined by RECIST 1.0, and adequate organ function. Results: 22 pts were enrolled in 6 dose levels, 2 at daily and 4 with twice daily dosing ranging from 1 to 5 gm orally per day; all evaluable for toxicity and 20 for response. Most common cancers included colorectal (13 pts), non small cell lung (3 pts), and ovarian (2 pts). 5 pts patients completed Cycle 1, 9 pts Cycle 2, 3 pts Cycle 3 and 1 pt each completed Cycles 4, 5, and 8. 2 pt had < 1 cycle. Only 7 AEs in 5 pts were reported as possibly related to study drug; 6 were gastrointestinal disorders, 1 a skin disorder. One GR 2 AE of vomiting was probably related to study drug. All other AEs were Grade 1. There were no treatment-related SAEs or DLTs. A recommended phase II dose (RP2D) is 2.5 g orally twice daily. PK data revealed evidence of detectable plasma total OMN54 in cohorts 1 to 6 with all 4 parent drug chemical markers with plasma half-lives of 1- 2 hours and no evidence of accumulation. Preliminary evidence of biological activity was seen with stable disease for 8 months in 1 pt and 4 pts with dose responsive reductions in TGF-β, EGF & Rantes, biomarkers of immune suppression. Significant TGF-β decreases were seen for 4 pts at doses of 2gm daily to 2.5 gm bid including an ovarian, colorectal, fallopian tube and esophageal cancer. Conclusion: OMN54 was well tolerated with no DLTs observed. Further studies at RP2D of 2.5 g bid orally should be done to assess activity. Citation Format: Daniel Renouf, Christian Kollmannsberger, Kim Chi, Stephen Chia, Anna Tinker, Teresa Mitchell, Stephen Lam, Teresa Joshi, David Kwok, John Ostrem, Simon Sutcliffe, Karen A. Gelmon. A phase 1 study of OMN54 in patients with advanced malignancies. [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics; 2015 Nov 5-9; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2015;14(12 Suppl 2):Abstract nr C41.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".